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26890870 = 2519913513
BaseRepresentation
bin110011010010…
…1001001110110
31212121012100011
41212211021312
523341001440
62400210434
7444366016
oct146451166
955535304
1026890870
11141a7566
129009a1a
135756a76
1437ddc46
1525629ea
hex19a5276

26890870 has 16 divisors (see below), whose sum is σ = 48650400. Its totient is φ = 10701504.

The previous prime is 26890849. The next prime is 26890879. The reversal of 26890870 is 7809862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4767 + ... + 8746.

It is an arithmetic number, because the mean of its divisors is an integer number (3040650).

Almost surely, 226890870 is an apocalyptic number.

26890870 is a deficient number, since it is larger than the sum of its proper divisors (21759530).

26890870 is a wasteful number, since it uses less digits than its factorization.

26890870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13719.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 26890870 is about 5185.6407511512. The cubic root of 26890870 is about 299.5952690365.

The spelling of 26890870 in words is "twenty-six million, eight hundred ninety thousand, eight hundred seventy".

Divisors: 1 2 5 10 199 398 995 1990 13513 27026 67565 135130 2689087 5378174 13445435 26890870